Answer:
12.5752053801 m/s
[tex]80\times 10^{-3}\ m^3/s[/tex]
No.
Explanation:
Q = Volume flow rate = [tex]80\ L/s=80\times 10^{-3}\ m^3/s[/tex]
d = Diameter of pipe = 9 cm
A = Area = [tex]\dfrac{\pi}{4}d^2[/tex]
Volume flow rate is given by
[tex]Q=Av\\\Rightarrow v=\dfrac{Q}{A}\\\Rightarrow v=\dfrac{80\times 10^{-3}}{\dfrac{\pi}{4} (9\times 10^{-2})^2}\\\Rightarrow v=12.5752053801\ m/s[/tex]
Velocity of fluid is 12.5752053801 m/s
The volume flow rate in m³/s is [tex]80\times 10^{-3}\ m^3/s[/tex]
The flow of fluid does not depend on the type of water used. Hence the answers would be same. If Q is constant v will be the same irrespective of the type of water used.